The First Battle of Bud Dajo , also known as the Moro Crater Massacre Killing , was a counter insurgency action fought Hostile_encounter by the United States Army against Moros in March 1906 , during the Moro Rebellion in the southwestern Philippines .

Whether the occupants of Bud Dajo were hostile Hostile_encounter to U.S. forces Hostile_encounter is disputed Quarreling , as inhabitants of Jolo Island had previously used Using the crater as a place of refuge during Spanish assaults Attack .

The author Vic Hurley wrote Writing , `` By no stretch of the imagination could Bud Dajo be termed Labeling a 'battle ' '' .

For example , the highest estimate of Native Americans killed Killing at the Wounded Bodily_harm Knee Massacre Killing is 300 out of 350 ( a death Death rate of 85 percent ) , whereas in Bud Dajo there were only six Moro survivors Catastrophe out of a group estimated at 1,000 ( a death Death rate of over 99 percent ) .

Duncan , assaulted Committing_crime the volcanic crater of Bud Dajo ( Tausūg : `` Būd Dahu '' ) , which was populated Filling by 800 to 1,000 Tausug villagers .

Other groups , including the Moro and Pulahan peoples , continued hostilities in remote areas and islands , until their final defeat Hostile_encounter at the Battle of Bud Bagsak on June 15 , 1913 .